ClassID:

217302

H02K7/1884 - CPC Classification

Classification description:

Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines; Structural association of electric generators with mechanical driving motors, e.g. with turbines; Linear generators; sectional generators with reciprocating, linearly oscillating or vibrating parts structurally associated with free piston engines

Recent Application in this class:
#1
20260149396
2026-05-28

Electric Power Generating Apparatus And Method Of Operating Same

#2
20260066758
2026-03-05

LINEAR ELECTROMAGNETIC MACHINE SYSTEM

#3
20250373117
2025-12-04

MOVEMENT LIMITING ASSEMBLY FOR A LINEAR ELECTRIC MACHINE

#4
20250373116
2025-12-04

INTEGRATED COUNTERWEIGHT FOR AN ELECTRIC MACHINE

#5
20250323553
2025-10-16

LINEAR ELECTRICAL MACHINE

#6
20250323552
2025-10-16

INTEGRATED PISTON ASSEMBLY FOR AN ELECTRIC MACHINE

#7
20250279696
2025-09-04

LINEAR GENERATOR SYSTEM HAVING A POLYGONAL LAYOUT

#8
20250260288
2025-08-14

SYSTEMS AND METHODS FOR FLEXURE-BASED BEARING MOUNTING

#9
20250175102
2025-05-29

CORE SYNCHRONIZATION FOR LINEAR GENERATORS

#10
20250167632
2025-05-22

INTEGRATED LINEAR GENERATOR SYSTEM

#11
20250062659
2025-02-20

SYSTEM AND METHOD FOR CONVERTING WASTE HEAT INTO ELECTRICITY

#12
20250030317
2025-01-23

INTEGRATED LINEAR GENERATOR SYSTEM

#13
20240405707
2024-12-05

METHOD AND SYSTEM FOR CONTROLLING A FREE PISTON MOVER

#14
20240240586
2024-07-18

ENERGY STORAGE AND CONVERSION IN LINEAR GENERATORS

#15
20240146152
2024-05-02

Linear electric generator

#16
20240113644
2024-04-04

Core synchronization for linear generators

#17
20240055946
2024-02-15

Integrated linear generator system

#18
20230246576
2023-08-03

Auto-braking for an electromagnetic machine

#19
20230198367
2023-06-22

LINEAR ELECTROMAGNETIC MACHINE SYSTEM

#20
20230193817
2023-06-22

Energy storage and conversion in linear generators

#21
20230034504
2023-02-02

Systems and methods for flexure-based bearing mounting

#22
20220399784
2022-12-15

Integrated linear generator system

#23
20220399783
2022-12-15

Electric vehicle with energy recovery system

#24
20220364502
2022-11-17

Energy storage and conversion in linear generators

#25
20220195847
2022-06-23

Pumpjack having linear alternator

#26
20220173682
2022-06-02

Auto-braking for an electromagnetic machine

#27
20220163000
2022-05-26

Internal combustion engine and method of operating same

#28
20220154634
2022-05-19

Opposing piston synchronized linear engine-alternator (OPSLEA) for electrical power generation

#29
20220127999
2022-04-28

Adaptive linear linked piston electric power generator

#30
20220123627
2022-04-21

Free piston generator based on rigid synchronous transmission system

#31
20220085743
2022-03-17

Method and system for controlling a free piston mover

#32
20220085694
2022-03-17

LINEAR ELECTRICAL MACHINE

#33
20220049646
2022-02-17

Adaptive linear linked piston electric power generator

#34
20220049645
2022-02-17

Adaptive linear linked piston electric power generator

#35
20210288570
2021-09-16

Linear electromagnetic machine system

#36
20200400064
2020-12-24

Energy storage and conversion in linear generators

#37
20200389106
2020-12-10

System for anticipating load changes

#38
20200386152
2020-12-10

Adaptive linear linked piston electric power generator

#39
20200378318
2020-12-03

Internal combustion engine and method of operating same

#40
20200328707
2020-10-15

Auto-braking for an electromagnetic machine

#41
20200300274
2020-09-24

Actuator module

#42
20200227976
2020-07-16

DC-DC converter in a non-steady system

#43
20200195093
2020-06-18

Integrated linear generator system

#44
20200136467
2020-04-30

SYSTEM AND METHOD FOR HARVESTING ENERGY

#45
20200052555
2020-02-13

Working medium property difference power generation system and working medium property difference power generation method that uses the power generation system

#46
20200036273
2020-01-30

Linear electromagnetic machine system with bearing housings having pressurized gas

#47
20190356200
2019-11-21

Linear electrical machine

#48
20190199167
2019-06-27

Reciprocating piston engine

#49
20190149074
2019-05-16

Auto-braking for an electromagnetic machine

#50
20190145324
2019-05-16

Lubrication system of an internal combustion engine and method of operating same

#51
20190136757
2019-05-09

Energy storage and conversion in free-piston combustion engines

#52
20190123668
2019-04-25

Auto-braking for an electromagnetic machine

#53
20190089225
2019-03-21

DC-DC converter in a non-steady system

#54
20180258845
2018-09-13

Homogeneous charge compression ignition linear generator

#55
20180205290
2018-07-19

Double-Acting Modular Free-Piston Stirling Machines Without Buffer Spaces

#56
20180195442
2018-07-12

Internal combustion engine and method of operating same

#57
20180179918
2018-06-28

Free piston device

#58
20170373561
2017-12-28

Device in a heat cycle for converting heat into electrical energy

#59
20170306837
2017-10-26

Energy storage and conversion in free-piston combustion engines

#60
20170018995
2017-01-19

Poly-generation system

#61
20160315523
2016-10-27

Reciprocating piston engine

#62
20160311303
2016-10-27

Reciprocating piston engine

#63
20160226342
2016-08-04

POWER GENERATOR

#64
20160208686
2016-07-21

Energy storage and conversion in free-piston combustion engines

#65
20150184598
2015-07-02

Internal combustion engine and method of operating same

#66
20150171706
2015-06-18

Electromechanical transducer

#67
20150001852
2015-01-01

Linear electrical machine/generator with segmented stator for free piston engine generator

#68
20140283511
2014-09-25

SYSTEM AND METHOD FOR ELECTRICALLY-COUPLED THERMAL CYCLE

#69
20140174396
2014-06-26

Piston

#70
20140074384
2014-03-13

Internal combustion engine and method of operating same

#71
20130154274
2013-06-20

SYSTEMS FOR ELECTRICAL POWER GENERATION

#72
20130119675
2013-05-16

ELECTRIC POWER GENERATOR AND MOTOR ASSEMBLY EQUIPPED THEREWITH

#73
20130088018
2013-04-11

Linear generator having a fluid pressure cylinder structure

#74
20130015667
2013-01-17

System and method for power generation system

#75
20120255434
2012-10-11

Piston

#76
20120248785
2012-10-04

System including an electromagnetically energized piston motor designed to convert chemical and electrical energy to mechanical energy

#77
20120153633
2012-06-21

Electropneumatic field device

#78
20120126545
2012-05-24

Engine device

#79
20120126544
2012-05-24

High-efficiency two-piston linear combustion engine

#80
20120126543
2012-05-24

HIGH-EFFICIENCY SINGLE-PISTON LINEAR COMBUSTION ENGINE

#81
20120112469
2012-05-10

Turbocompound free piston linear alternator

#82
20120112468
2012-05-10

Opposed free piston linear alternator

#83
20120112467
2012-05-10

Free piston linear alternator utilizing opposed pistons with spring return

#84
20120056433
2012-03-08

TECHNIQUES FOR THE EFFICIENT GENERATION OF ELECTRIC CURRENT BY TRANSLATION OF FORCE THROUGH HYDRAULIC COUPLING

#85
20110277457
2011-11-17

Energy storage and production systems, apparatus and methods of use thereof

#86
20110221208
2011-09-15

Opposed piston electromagnetic engine

#87
20110221206
2011-09-15

LINEAR POWER GENERATOR WITH A RECIPROCATING PISTON CONFIGURATION

#88
20110197828
2011-08-18

Power Generation Using Water Pressure

#89
20110095542
2011-04-28

Lubricant free, reduced mass, free-piston, Stirling machine having reciprocating piston drivingly linked to rotary electromagnetic transducer moving in rotational oscillation

#90
20110067216
2011-03-24

Method of retrofitting an engine

#91
20110012367
2011-01-20

Free-piston linear alternator systems and methods

#92
20110012366
2011-01-20

Stirling Machine

#93
20100289263
2010-11-18

Free piston electromagnetic engine

#94
20100288214
2010-11-18

Internal combustion engine and method of operating same

#95
20100283263
2010-11-11

Device for conversion of thermodynamic energy into electrical energy

#96
20100277012
2010-11-04

Linear generator having a fluid pressure cylinder structure

#97
20100162998
2010-07-01

Free piston assembly and method for controlling a free piston assembly

#98
20100127506
2010-05-27

System and method for electrically-coupled thermal cycle

#99
20100115942
2010-05-13

System and method for electrically-coupled thermal cycle

#100
20100115941
2010-05-13

System and method for electrically-coupled thermal cycle

#101
20090193805
2009-08-06

Stirling cycle engine

#102
20090094827
2009-04-16

Method of retrofitting an engine

#103
20090091195
2009-04-09

Free piston electromagnetic engine

#104
20090090334
2009-04-09

Opposed piston electromagnetic engine

#105
20080042496
2008-02-21

Electromagnetic power transferring system

#106
20080018179
2008-01-24

LINEAR ELECTRODYNAMIC SYSTEM AND METHOD

#107
20070169476
2007-07-26

System and method for electrically-coupled thermal cycle

#108
20070158947
2007-07-12

System and method for controlling a power generating system

#109
20070158946
2007-07-12

Power generating system

#110
20070158945
2007-07-12

System and method for controlling a power generating system

#111
20060226728
2006-10-12

Relaying piston multiuse valve-less electromagnetically controlled energy conversion devices

#112
20060181157
2006-08-17

Linear electrodynamic system and method

#113
20060138777
2006-06-29

Ring generator

#114
20060048510
2006-03-09

Double acting thermodynamically resonant free-piston multicylinder stirling system and method

#115
20050109295
2005-05-26

Free piston engine and power generation system therewith

#116
20050082917
2005-04-21

Linear generator with a swinging piston

#117
20050081804
2005-04-21

Free-piston device with electric linear drive

#118
20050077787
2005-04-14

Linear electrodynamic system and method

#119
20050023835
2005-02-03

Reciprocating engine type electric generator

#120
18080638
2024-05-14

Vapor powered electro-mechanical generator

#121
17690166
2023-04-04

Control system for an electric generator

#122
16418071
2020-09-08

System for anticipating load changes

#123
15384965
2019-12-03

Lightweight return flux alternator